原文传递
Materials review for improved automotive gas turbine engine
| 题名： | Materials review for improved automotive gas turbine engine |
| 作者： | Belleau, C.; Ehlers, W. L.; Hagen, F. A. |
| 关键词： | turbine；improved；material；review；engine；tomo；temperature；omot；silicon；chromium |
| 摘要： | The potential role of superalloys, refractory alloys, and ceramics in the hottest sections of engines operating with turbine inlet temperatures as high as 1370 C is examined. The convential superalloys, directionally solidified eutectics, oxide dispersion strenghened alloys, and tungsten fiber reinforced superalloys are reviewed and compared on the basis of maximum turbine blade temperature capability. Improved high temperature protective coatings and special fabrication techniques for these advanced alloys are discussed. Chromium, columbium, molybdenum, tantalum, and tungsten alloys are also reviewed. Molbdenum alloys are found to be the most suitable for mass produced turbine wheels. Various forms and fabrication processes for silicon nitride, silicon carbide, and SIALON's are investigated for use in highstress and medium stress high temperature environments. |
| 报告类型： | 科技报告 |
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